User's Manual Part 3

Hi-G-Tek Ltd. Microelectronics & Asset Tracking Technology
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6
RS 485/232 Communication Protocol
6.5.3.9. Reader IH length Thw
This is the Reader's IH string length. The values may be modified
for a specific application.
Bits assignment:
Bits assignment:
7 0 7 0
High byte
Low byte
6.5.3.10. Reader Address RADD.
This is the Reader's address on the RS-485 link. For RS-232, the
value is 0xFFFF
7 0 7 0
High byte
Low byte
6.5.3.11. Mode MODE.
The MODE parameter determines the operating mode of the
Reader. Each bit indicates another feature.
7 6 5 4 3 2 1 0
CRNC UNSYNC ABMSG N.A N.A N.A N.A N.A
CRNC
Carrier Sense: In some applications, carrier sense
must be used before bursting into the air.
The Reader uses this flag to decide whether it is
required or not.
CRNC=0 This response determines the regular
mode (no carrier sense).
CRNC=1 This response determines that the Reader
can sense the carrier. The Reader will execute the
RF command only after determining that the air is
free.